#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QAction>
#include <QMenu>
#include <QCursor>
#include <QMouseEvent>
#include <QContextMenuEvent>
#include <QNetworkRequest>
#include <QMessageBox>
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QStringList>
#include <weatherTool.h>
#include <QPainter>
#include <QPen>
#define INCREMENT 2//温度升（降）1°，y轴坐标增量
#define POINT_RADIUS 3 // 曲线描点的大小
#define TEXT_OFFSET_X 6
#define TEXT_OFFSET_Y 6

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    setWindowFlag(Qt::FramelessWindowHint);//设置窗口无边框
    setFixedSize(width(),height());//设置固定窗口
    //构建右键菜单
    mExitMenu = new QMenu(this);
    mExitAct = new QAction();
    mExitAct->setText("退出");
    mExitAct->setIcon(QIcon(":/img/res/324.bmp"));
    mExitMenu->addAction(mExitAct);
    connect(mExitAct,QAction::triggered,this,[=]{
        qApp->exit();
    });

    // 3. UI初始化
    //将控件添加到控件数组，方便使用循环进行处理
    //星期和日期
    mWeekList << ui->lblWeek0 << ui->lblWeek1 << ui->lblWeek2 << ui->lblWeek3 << ui->lblWeek4 << ui->lblWeek5;
    mDateList << ui->lblDate0 << ui->lblDate1 << ui->lblDate2 << ui->lblDate3 << ui->lblDate4 << ui->lblDate5;

    //天气和天气图标
    mTypeList << ui->lblType0 << ui->lblType1 << ui->lblType2 << ui->lblType3 << ui->lblType4 << ui->lblType5;
    mTypeIconList << ui->lblTypeIcon0 << ui->lblTypeIcon1 << ui->lblTypeIcon2 << ui->lblTypeIcon3 << ui->lblTypeIcon4 << ui->lblTypeIcon5;

    //天气指数
    mAqiList << ui->lblQuality0 << ui->lblQuality1 << ui->lblQuality2 << ui->lblQuality3 << ui->lblQuality4 << ui->lblQuality5;

    //风向和风力
    mFxList << ui->lblFx0 << ui->lblFx1 << ui->lblFx2 << ui->lblFx3 << ui->lblFx4 << ui->lblFx5;
    mFlList << ui->lblFl0 << ui->lblFl1 << ui->lblFl2 << ui->lblFl3 << ui->lblFl4 << ui->lblFl5;

    mTypeMap.insert("暴雪",":/img/res/type/BaoXue.png");
    mTypeMap.insert("暴雨",":/img/res/type/BaoYu.png");
    mTypeMap.insert("暴雨到大暴雨",":/img/res/type/BaoYuDaoDaBaoYu.png");
    mTypeMap.insert("大暴雨",":/img/res/type/DaBaoYu.png");
    mTypeMap.insert("大暴雨到特大暴雨",":/img/res/type/DaBaoYuDaoTeDaBaoYu.png");
    mTypeMap.insert("大到暴雪",":/img/res/type/DaDaoBaoXue.png");
    mTypeMap.insert("大雪",":/img/res/type/DaDaoBaoYu.png");
    mTypeMap.insert("大雨",":/img/res/type/DaYu.png");
    mTypeMap.insert("冻雨",":/img/res/type/DongYu.png");
    mTypeMap.insert("多云",":/img/res/type/DuoYun.png");
    mTypeMap.insert("浮沉",":/img/res/type/FuChen.png");
    mTypeMap.insert("雷阵雨",":/img/res/type/LeiZhenYu.png");
    mTypeMap.insert("雷阵雨伴有冰雹",":/img/res/type/LeiZhenYuBanYouBingBao.png");
    mTypeMap.insert("霾",":/img/res/type/Mai.png");
    mTypeMap.insert("强沙尘暴",":/img/res/type/QiangShaChenBao.png");
    mTypeMap.insert("晴",":/img/res/type/Qing.png");
    mTypeMap.insert("沙尘暴",":/img/res/type/ShaChenBao.png");
    mTypeMap.insert("特大暴雨",":/img/res/type/TeDaBaoYu.png");
    mTypeMap.insert("undefined",":/img/res/type/undefined.png");
    mTypeMap.insert("雾",":/img/res/type/Wu.png");
    mTypeMap.insert("小到中雪",":/img/res/type/XiaoDaoZhongXue.png");
    mTypeMap.insert("小到中雨",":/img/res/type/XiaoDaoZhongYu.png");
    mTypeMap.insert("小雪",":/img/res/type/XiaoXue.png");
    mTypeMap.insert("小雨",":/img/res/type/XiaoYu.png");
    mTypeMap.insert("雪",":/img/res/type/Xue.png");
    mTypeMap.insert("扬沙",":/img/res/type/YangSha.png");
    mTypeMap.insert("阴",":/img/res/type/Yin.png");
    mTypeMap.insert("雨",":/img/res/type/Yu.png");
    mTypeMap.insert("雨夹雪",":/img/res/type/YuJiaXue.png");
    mTypeMap.insert("阵雪",":/img/res/type/ZhenXue.png");
    mTypeMap.insert("阵雨",":/img/res/type/ZhenYu.png");
    mTypeMap.insert("中到大雪",":/img/res/type/ZhongDaoDaXue.png");
    mTypeMap.insert("中到大雨",":/img/res/type/ZhongDaoDaYu.png");
    mTypeMap.insert("中雪",":/img/res/type/ZhongXue.png");
    mTypeMap.insert("中雨",":/img/res/type/ZhongYu.png");

    //网络请求
    mNetworkAccessManager = new QNetworkAccessManager(this);
    connect(mNetworkAccessManager,&QNetworkAccessManager::finished,this,&MainWindow::onReplied);
    //直接构造，请求天气数据
    //101010100  北京城市编码
    //101100101 太原
    getWeatherInfo("太原");
    //给标签添加事件过滤器
    ui->lblHighCurve->installEventFilter(this);
    ui->lblLowCurve->installEventFilter(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}
//通过http请求数据
void MainWindow::onReplied(QNetworkReply *reply)
{
    int status_code = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
    if(reply->error() != QNetworkReply::NoError||status_code!=200){
        qDebug()<<reply->errorString().toLatin1().data();
        QMessageBox::warning(this,"天气","请求数据失败",QMessageBox::Ok);
    }else{
        QByteArray byteArray = reply->readAll();
        parseJSON(byteArray);
        // qDebug()<<byteArray.data();
    }
    reply->deleteLater();
}
//重写父类虚函数  默认（右键菜单事件） 重写后处理右键菜单事件
void MainWindow::contextMenuEvent(QContextMenuEvent *event)
{
    //弹出右键菜单
    mExitMenu->exec(QCursor::pos());
    event->accept();
}

//窗口跟随鼠标移动
void MainWindow::mousePressEvent(QMouseEvent *event)
{
    mOffset = event->globalPos()-this->pos();
}

void MainWindow::mouseMoveEvent(QMouseEvent *event)
{
    this->move(event->globalPos()-mOffset);
}
//发送http请求
void MainWindow::getWeatherInfo(QString cityName)
{
    QString cityCode = WeatherTool::getCityCode(cityName);;
    if(cityCode.isEmpty()){
        QMessageBox::warning(this,"天气","请检查输入是否正确",QMessageBox::Ok);
        return;
    }
    // qDebug()<<cityCode;
    QUrl url("http://t.weather.itboy.net/api/weather/city/"+cityCode);
    mNetworkAccessManager->get(QNetworkRequest(url));
}

//解析请求数据
void MainWindow::parseJSON(QByteArray &byteArray)
{
    QJsonParseError err;
    QJsonDocument doc = QJsonDocument::fromJson(byteArray,&err);
    if(err.error != QJsonParseError::NoError){
        return;
    }
    QJsonObject rootObj = doc.object();
    // qDebug() << doc;
    //解析日期和城市
    mToday.date = rootObj.value("date").toString();
    mToday.city = rootObj.value("cityInfo").toObject().value("city").toString();
    //解析昨天
    QJsonObject objData = rootObj.value("data").toObject();

    QJsonObject objYesterday = objData.value("yesterday").toObject();
    mDay[0].week = objYesterday.value("week").toString();
    mDay[0].date = objYesterday.value("ymd").toString();
    mDay[0].type = objYesterday.value("type").toString();
    QString s;
    s = objYesterday.value("high").toString().split(" ").at(1);//18度
    mDay[0].high = s.left(s.length()-1).toInt();
    // qDebug()<<s.left(s.length()-1);
    s = objYesterday.value("low").toString().split(" ").at(1);//18度
    mDay[0].low = s.left(s.length()-1).toInt();
    //风向，风力
    mDay[0].fx = objYesterday.value("fx").toString();
    mDay[0].fl = objYesterday.value("fl").toString();
    //天气污染指数
    mDay[0].aqi = objYesterday.value("aqi").toDouble();
    //解析forzast 五天的数据
    QJsonArray forecastArray = objData.value("forecast").toArray();

    for(int i=0;i<5;i++){
        QJsonObject objForecast = forecastArray[i].toObject();

        mDay[i+1].week = objForecast.value("week").toString();
        mDay[i+1].date = objForecast.value("ymd").toString();
        mDay[i+1].type = objForecast.value("type").toString();
        QString s;
        s = objForecast.value("high").toString().split(" ").at(1);//18度
        mDay[i+1].high = s.left(s.length()-1).toInt();
        s = objForecast.value("low").toString().split(" ").at(1);//18度
        mDay[i+1].low = s.left(s.length()-1).toInt();
        //风向，风力
        mDay[i+1].fx = objForecast.value("fx").toString();
        mDay[i+1].fl = objForecast.value("fl").toString();
        //天气污染指数
        mDay[i+1].aqi = objForecast.value("aqi").toDouble();
    }
    //解析今天的数据

    mToday.ganmao = objData.value("ganmao").toString();
    mToday.wendu = objData.value("wendu").toString().toInt();
    mToday.shidu = objData.value("shidu").toString();
    mToday.pm25 = objData.value("pm25").toDouble();
    mToday.quality = objData.value("quality").toString();

    mToday.type = mDay[1].type;
    mToday.fx = mDay[1].fx;
    mToday.fl = mDay[1].fl;
    mToday.high = mDay[1].high;
    mToday.low = mDay[1].low;


    //更新ui
    updateUI();
    //绘制温度曲线
    ui->lblHighCurve->update();
    ui->lblLowCurve->update();
}
//更新ui
void MainWindow::updateUI()
{
    //更新日期和城市
    ui->lblDate->setText(QDateTime::fromString(mToday.date,"yyyyMMdd").toString("yyyy/MM/dd")+" "+mDay[1].week);
    ui->lblCity->setText(mToday.city);
    //更新今天
    ui->lblTypeIcon->setPixmap(mTypeMap[mToday.type]);
    ui->lblTemp->setText(QString::number(mToday.wendu)+"°");
    ui->lblLowHigh->setText(mToday.type+" "+QString::number(mToday.low)+"~"+QString::number(mToday.high)+"°C");
    // qDebug()<<QString::number(mToday.low);
    ui->lblGanMao->setText("感冒指数："+mToday.ganmao);
    ui->lblWindFx->setText(mToday.fx);
    ui->lblWindFl->setText(mToday.fl);
    ui->lblPM25->setText(QString::number(mToday.pm25));
    ui->lblShiDu->setText(mToday.shidu);
    ui->lblQuality->setText(mToday.quality);
    //更新6天
    for(int i=0;i<6;i++){
        mWeekList[i]->setText("周"+mDay[i].week.right(1));
        ui->lblWeek0->setText("昨天");
        ui->lblWeek1->setText("今天");
        ui->lblWeek2->setText("明天");

        QStringList ymdList = mDay[i].date.split("-");
        mDateList[i]->setText(ymdList[1] + "/" + ymdList[2]);

        // 3.2 更新天气类型
        mTypeList[i]->setText(mDay[i].type);
        mTypeIconList[i]->setPixmap(mTypeMap[mDay[i].type]);

        // 3.3 更新空气质量
        if(mDay[i].aqi >= 0 && mDay[i].aqi <= 50){
            mAqiList[i]->setText("优");
            mAqiList[i]->setStyleSheet("background-color: rgb(121, 184, 0)");
        }else if(mDay[i].aqi > 50 && mDay[i].aqi <= 100){
            mAqiList[i]->setText("良");
            mAqiList[i]->setStyleSheet("background-color: rgb(255, 187, 23)");
        }else if(mDay[i].aqi > 100 && mDay[i].aqi <= 150){
            mAqiList[i]->setText("轻度");
            mAqiList[i]->setStyleSheet("background-color: rgb(255, 87, 97)");
        }else if(mDay[i].aqi > 150 && mDay[i].aqi <= 200){
            mAqiList[i]->setText("中度");
            mAqiList[i]->setStyleSheet("background-color: rgb(235, 17, 27)");
        }else if(mDay[i].aqi > 200 && mDay[i].aqi <= 250){
            mAqiList[i]->setText("重度");
            mAqiList[i]->setStyleSheet("background-color: rgb(170, 0, 0)");
        }else{
            mAqiList[i]->setText("严重");
            mAqiList[i]->setStyleSheet("background-color: rgb(110, 0, 0)");
        }

        // 3.4 更新风力和风向
        mFxList[i]->setText(mDay[i].fx);
        mFlList[i]->setText(mDay[i].fl);
    }


}

bool MainWindow::eventFilter(QObject *watched, QEvent *event)
{
    if(watched==ui->lblHighCurve&&event->type()==QEvent::Paint){
        paintHighCurve();
    }
    if(watched==ui->lblLowCurve&&event->type()==QEvent::Paint){
        paintLowCurve();
    }
    return QWidget::eventFilter(watched,event);
}

void MainWindow::paintHighCurve()
{
    QPainter painter(ui->lblHighCurve);
    //抗锯齿
    painter.setRenderHint(QPainter::Antialiasing,true);
    //获取x,y坐标
    int pointX[6] = {0};
    for(int i =0;i<6;i++){
        pointX[i] = mWeekList[i]->pos().x()+mWeekList[i]->width()/2;
    }
    //y
    int tempSum = 0;
    int tempAverage = 0;
    for(int i=0; i<6; i++){
        tempSum += mDay[i].high;
    }
    tempAverage = tempSum / 6; //这6天最高温的平均值
    // 计算y轴坐标
    int pointY[6] = {0};
    int yCenter = ui->lblHighCurve->height()/2;
    for(int i=0; i<6; i++){
        pointY[i] = yCenter - ((mDay[i].high - tempAverage) * INCREMENT);
    }

    // 3. 开始绘制
    // 3.1 初始化画笔相关
    QPen pen = painter.pen();
    pen.setWidth(1);                    //设置画笔的宽度
    pen.setColor(QColor(255, 170, 0));  //设置画笔的颜色
    painter.setPen(pen);
    painter.setBrush(QColor(255, 170, 0)); //设置画刷内部填充的颜色

    // 3.2 画点、写文本
    for(int i=0; i<6; i++){

        //显示点
        painter.drawEllipse(QPoint(pointX[i], pointY[i]), POINT_RADIUS, POINT_RADIUS);

        //显示温度文本
        painter.drawText(pointX[i]-TEXT_OFFSET_X, pointY[i]-TEXT_OFFSET_Y, QString::number(mDay[i].high) + "°");
    }

    // 3.3 绘制曲线
    for(int i=0; i<5; i++){
        if(i==0){
            pen.setStyle(Qt::DotLine); //虚线
            painter.setPen(pen);
        }else{
            pen.setStyle(Qt::SolidLine); //实线
            painter.setPen(pen);
        }
        painter.drawLine(pointX[i], pointY[i], pointX[i+1], pointY[i+1]);
    }
}

void MainWindow::paintLowCurve()
{
    QPainter painter(ui->lblLowCurve);

    // 抗锯齿
    painter.setRenderHint(QPainter::Antialiasing, true);

    // 1. 获取x坐标
    int pointX[6] = {0};
    for(int i=0; i<6; i++){
        pointX[i] = mWeekList[i]->pos().x() + mWeekList[i]->width()/2;
    }

    // 2. 获取y坐标
    int tempSum = 0;
    int tempAverage = 0;
    for(int i=0; i<6; i++){
        tempSum += mDay[i].low;
    }
    tempAverage = tempSum / 6; //这6天最高温的平均值

    // 计算y轴坐标
    int pointY[6] = {0};
    int yCenter = ui->lblLowCurve->height()/2;
    for(int i=0; i<6; i++){
        pointY[i] = yCenter - ((mDay[i].low - tempAverage) * INCREMENT);
    }


    // 3. 开始绘制
    // 3.1 初始化画笔相关
    QPen pen = painter.pen();
    pen.setWidth(1);                    //设置画笔的宽度
    pen.setColor(QColor(0, 255, 255));  //设置画笔的颜色
    painter.setPen(pen);
    painter.setBrush(QColor(0, 255, 255)); //设置画刷内部填充的颜色

    // 3.2 画点、写文本

    for(int i=0; i<6; i++){
        //显示点
        painter.drawEllipse(QPoint(pointX[i], pointY[i]), POINT_RADIUS, POINT_RADIUS);

        //显示温度文本
        painter.drawText(pointX[i]-TEXT_OFFSET_X, pointY[i]-TEXT_OFFSET_Y, QString::number(mDay[i].low) + "°");
    }

    // 3.3 绘制曲线
    for(int i=0; i<5; i++){
        if(i==0){
            pen.setStyle(Qt::DotLine); //虚线
            painter.setPen(pen);
        }else{
            pen.setStyle(Qt::SolidLine); //实线
            painter.setPen(pen);
        }
        painter.drawLine(pointX[i], pointY[i], pointX[i+1], pointY[i+1]);
    }
}

//搜索按钮点击事件
void MainWindow::on_pushButton_clicked()
{
    QString cityName = ui->lineCity->text();
    getWeatherInfo(cityName);
}

